Manuale d`uso User manual
Contents
1. Controllore per armadi di condizionamento HAC Electronic control for air conditioning units CAREI LEGGI E CONSERVA gt QUESTE ISTRUZIONI lt READ AND SAVE THESE INSTRUCTIONS User manual Tecnologia ed Evoluzione 1 GENERAL CHARACTERISTICS 1 1 GENERAL DESCRIPTION 2 MAIN FUNCTIONS 2 CONTROLLED DEVICES 2 OPTIONS 2 2 EMIPRO USER INTERFACE 2 2 1 THE DISPLAY 3 2 2 STATUS INDICATORS 5 MEANING OF THE LED FIG 3 5 2 3 THE KEYPAD 5 3 PROGRAMMING PARAMETERS AND THEIR MODIFICATION 6 3 1 PARAMETERS 6 3 2 PARAMETER MODIFICATION 6 ACCESSING DIRECT PARAMETERS D 6 ACCESSING USER PARAMETERS U 7 4 DESCRIPTION AND CONFIGURATION OF THE PARAMETERS 8 5 CLOCK TIME BANDS AND ALARM LOG 13 5 1 CLOCK 13 TIME DISPLAY 13 SETTING THE TIME 13 5 2 TIME BANDS 13 COPYING THE TIME BANDS 13 5 3 ALARM LOG 14 DISPLAY ALARM LOG 14 DELETING THE ALARM LOG 14 EXITING THE ALARM LOG 15 6 ALARMS AND SIGNALS 15 6 1 TABLE OF ALARM 16 6 2 ALARM DESCRIPTION 17 6 3 ALARM SIGNALS 17 6 4 MACHINE SHUT DOWN SIGNALS 19 LENNOX 1 General characteristics 1 1 General description The EMIPRO is an electronic control for the complete management of precision air conditioners both in direct expansion versions with 1 or 2 compressors with 1 or 2 heating elements or with batteries valve on the heating battery and or valve on the cooling battery The control also allows the management of a humidifier and dehumidif2. Function of output Y2 phase cut 0 supply fan speed control 1 condensation fan speed control using B3 2 condensation fan speed control using B2 Function of probe B2 0 compensation 1 free cooling using 0 10V 2 free cooling using Out3 Out4 3 free cooling ON OFF with Out3 4 condensation control Function of probe B3 0 humidity control 1 condensation control ON OFF digital input 0 absent 1 present Alarm relay logic 0 de energised in alarm for all alarms 1 energised in alarm for all alarms 2 de energised in alarm only for serious alarms 3 energised in alarm only for serious alarms Delay on start up UUUU USER password UUUU flags FFFF flags FFFF flag FFFF flag UUU c flag UUUF flags Block parameter modifications displayed by lock UUUU flag 0 no block Parameter sets f n Select data shown on display UFUF 0 probes B1 B3 if present flags 1 temperature and humid set point if present 2 day and time if clock present Ql KO 42 m NO LENNOX o Supervisor network serial address UUUU 1 20 Jij Supervisor serial baudrate UUUU 1 5 05 5 1 1200 2 2400 3 4800 4 9600 5 19200 Baud r Softwareversion A DDDD n 5 Clock time bands and alarm log Functions enabled only with the clock board memory installed 5 1 Clock Time display Pressing the 9 button displays the cur
3. U compensation H Set Point compensation on temp read by B2 UFUU 20 60 C 25 0 cooling 4 140 B cooling ma Set Point compensation on temp read by B2 UFUU 20 60 C 10 0 heating 4 140 T L Free cooling differential UFUU 30 C 54 F n Lower supply temperature limit during freee UFUU 20 30 C 5 cooling 4 86 o Reading from probe B2 DDDD J ee P Reading from probe B3 DDDD Jj wHba yf Reading from probe B4 DDDD J ee t Time band setting UUDD 2 Flags 0 disabled 1 fan on minimum with temp monitoring 2 On off LENNOX 9 hi Compressor 1 Compressor rotation FFFF 0 disabled 1 enabled 7 Delay comp ON from supply fan start up UFUF Hour counter threshold for the compressor UUUU 0 disabled 9 Hour counter compressor1 DUDU 30000 A Hourcounercompressr2 DUDUJ o 30000 Fan operating mode 0 always ON 1 proportional speed regulation If used in condensation the fan is kept at minimum even below the value of F5 2 proportional speed regulation If used in condensation the fan is switched off below the value of F5 with an hysteresis of 0 5 bar for pressure or 1 C for temperature 2 Minimum Triac voltage threshold FFFF o F4 step 35 15 0 1 0 15 regulation band for minimum speed or UFUF 0 F6 temperature pressure 4 bar for minimum speed in 0 C F condensation
4. symbol fi confirming access via password to the procedure The buttons are used to enter the password 22 default which is confirmed by pressing enter the H button The value of the first accessible parameter is then displayed in the upper right with the parameter code flashing ITP ay EM eS B I The value of the first accessible parameter is then displayed in the upper right with the parameter code flashing The buttons be used to scroll the various parameters MN fy A enter Once having entered any level of parameters one pressing of the L1 button displays the value flashing of the parameter selected while the buttons be used to modify such value LENNOX 7 Then using the buttons scroll the parameters menu repeating the previous steps for each parameter to be modified Press the button on the other hand to store the modifications made During all phases of setting the parameters the open book symbol is displayed in the lower left of the display on the other hand when setting the password a lock Q also appears confirming the presence of a block 4 Description and configuration of the parameters Probes Type 0123 Presence external air probe FFUU Flag 0 absent 1 NTC Carel Type of humidity press temp probe B3 FFFF Flags 0 absent 1 0 1Vdc or 0 20 2 4 20mA Presence supply air B4 Flag 0 abse
5. 4 bar regulation band for maximum speed or UFUF F5 100 100 temperature pressure 5 bar for maximum speed in 158 C F condensation bar Fa 10 7 Minimum output value UFUF 0 F8 UFUF Fan hour counter threshold UUUU 30000 h 0 disabled A Supply fan hour counter DUDU o 30000 n o Filter hour counter threshold UUUU 30000 h 0 disabled Filter hour counter DUDU o 30000 h 0 d Supply fan OFF delay UFUF o 90 s 20 Fan pick up time in condensation UFFF 0 6 s 4 LENNOX 10 EB Flow alarm delay from fan start up Flow alarm delay during operation Low pressure alarm delay from compressor ON Buzzer activation 0 OFF 1 14 min 15 continuous 5 Reset alarms various configurations Delta from effective set point for low temperature UF UU alarm 7 Delta from effective set point for high temperature UF U U alarm a Delta from set point for low humidity alarm UFUU 9 Delta from set point for high humidity alarm UFUU A Alarm delay high low temperature humidity U U U U start up Type of management of generic alarm input ID5 UFUF 0 no alarm connected 1 signal only alarm automatic reset 2 signal only alarm manual reset 3 serious alarm automatic reset 4 serious alarm manual reset 5 serious alarm automatic reset also active in stand by 6 serious alarm manual reset also active in stand by Generic alarm delay Retur
6. OFF external contact status ON machine enabled OFF machine in stand by indicates that the value displayed is the temperature with this symbol off the Set point is displayed time band selected dehumidification active ventilation active fan speed cooling active number 1 or 2 cooling actuators 96 opening cooling valve or in shelter mode opening free cooling damper heating active number 1 or 2 heating actuators opening valve humidification active steam production programming phase parameter modification blocked gt password setting Q clock display clock set up LENNOX 2 2 Status indicators The main states of the regulator are displayed to the user through 3 LEDs on the front panel line alarm Con Fig 3 Meaning of the LED Fig 3 Line LED yellow control powered Alarm LED red machine alarm the siren symbol on the display is on only when the buzzer is active ON LED green machine ON from keypad or supervisor referred to the EEPROM variable The effective ON status of the machine may in addition depend on the ON OFF digital input on the active time band the stand by condition transmitted from the master unit if a series of units is in rotation and is indicated by the illumination of the fan symbol The ON OFF symbols on the Display are illuminated only when the input of the r
7. ON ON threshold filter mL 27 2 hour counter ON ON threshold 29 hour counter imm FA ON ON LENNOX 16 6 2 Alarm Description Cod Description P5 1 P5 2 P5 3 P5 4 P5 5 prbeBi 0 0 probe 1 probe B2 probe B3 probe B4 EE run auto auto auto auto auto auto auto EL insuff power on EEPROM auto auto auto man man man auto auto auto auto auto auto i write high pressure C2 L1 low pressure C1 F1 filter dirty man FL flow man Trt heating omens men men man m auto auto auto man man man auto man auto auto auto L2 low pressure C2 auto auto supply temp AH humidifier man a ERTS auto man auto auto low temperature high temperature LH low humidity high humidity comp thermal tF fan thermal serious generic Pb Pb Pb Pb Pb clock 6 3 Alarm signals man man man man man man auto auto auto auto auto auto man man man man man man man man auto auto auto auto man man man auto auto auto auto auto auto man All the alarms except for the generic external alarm AL configured by parameter Pb and the clock are detected only when the machine is ON E1 ambient temperature probe failure generated due to open or short circuited probe Alarm delayed by 1 minute from the i
8. The code of the last alarm event is shown and on repeatedly pressing Sel the hour minute and the date The fr and buttons scroll the alarm data In places where no alarm has been recorded dashes are displayed in the place of the code The display includes an incremental index in the right hand field which identifies the current position the hundreds then appear in the field on the left e g 1 rES 55 indicates that a reset of the machine was performed and the position is 155 rES 0 Fig 35 Deleting the alarm log The entire alarm log can be deleted from within the display of log itself by pressing the buttons together for 5 seconds At this point the FACTORY password 177 is required which confirmed by enter leads to the deletion of the log EN i This operation re initialises the clock board EEPROM and must be performed when installing the board itself The alarm codes displayed are those reported in the table in the chap ter on the alarms in addition other special codes have been included to signal the following events Code Meaning PrOn Machine re start after power failure rES Manual alarm reset using the Alarm button Exiting the alarm log To exit the alarm log menu press the Alarm button The menu is exited in any case by time out after 60 seconds 6 Alarms and signals In the event of an alarm the machine performs the following actions e activ
9. alarm Alarm delayed by parameters P1 and P2 The activation of this alarm causes the switching off of all of devices without waiting the delay times of the compressors and the fan If set for automatic reset parameter P5 a restart of the outputs is attempted 10 times r1 heating element thermal overload alarm Causes the immediate switching off of the heating elements At high supply temperature alarm cooling function Enabled by the presence of the supply air temperature probe B4 parameter 2 and by the setting of parameter Pd The alarm has a fixed delay of 2 minutes and is activated only if the cooling actuators are on and heating actuators are off In particular the conditions leading to the activation of the alarm are e ED at least one compressor on and heating elements off or heating valve closed e CW cooling valve open more than 50 and heating valve closed or heating elements off This alarm when detected only blocks the compressor on at that moment while the second compressor remains enabled AH humidifier alarm Alarm delayed by 30 seconds If detected the humidifier output 0 10Vdc or relay is deactivated Lt low temperature alarm Ht high temperature alarm These alarms are delayed on the start up of the regulator or on exiting stand by mode for a period equal to parameter PA and for 1 minute on exceeding the set threshold The reset occurs if programmed as automatic 1 degree above Lt and 1 degree
10. ates the buzzer and display if enabled and machine ON e activates the alarm relay according to parameters HF e displays the alarm code and switches on the corresponding red LED In this condition pressing the alarm button silences the buzzer The termination of alarms with automatic reset if no alarms with manual reset are active brings about e the switching off of the buzzer e the deactivation of the alarm relay see parameter HF e the switching off of the red alarm LED e the re activation of the actuators switched off by the alarm Pressing the f and buttons together for 2 seconds cancels the display of the alarm codes In the event of alarms with manual reset pressing the fT and g buttons together for 2 seconds brings about e the deactivation of the alarm relay see parameter HF e the switching off of the red alarm LED e the re activation of the actuators switched off by the alarm The maintenance signals for compressors 1 and or 2 the fan and the filter due to the exceeding of the hour counter thresholds activate the symbol on the display the red LED the buzzer and the alarm relay The alarm messages are shown cyclically in the order indicated in the following table On termination the display of the percentage of humidity if present returns for 6 seconds LENNOX 15 6 1 Table of alarm n Cod Description Delay Reset Buzz Alam c ca Ri m2 SysiON Fan Hum Deh
11. below Ht the threshold LENNOX 18 In addition exceeding the high temperature threshold causes the immediate start up of the compressors without waiting the corresponding delay times LH HH low high humidity alarm These alarms are delayed on start up or on exiting stand by mode for a period equal to parameter PA and for 1 minute from exceeding the set threshold These are signal only alarms with an hysteresis of 1 R H tC compressor thermal overload alarm Immediate alarm causes the instant switching off of the compressor This is managed only if parameter H5 1 or 5 one compressor only or two compressors in tandem tF fan thermal overload alarm Immediate alarm causes the instant switching off of all devices without respecting the compressor delay times This is managed only if parameter H5 1 or 5 one compressor only or two compressors in tandem AL generic external alarm This alarm can be configured by setting parameters Pb and PC If configured as a serious alarm it switches off all actuators without respecting the delay times PA shelter power failure alarm External power failure alarm delayed by 2 seconds This is generated for models configured as shelters when input ID6 is open it causes the immediate switching off of the compressor and the heating element CL clock failure alarm Alarm generated by the malfunctioning of the clock board Interrupts the time band function and the regulator goes into ON
12. emote contact is enabled and indicate the status of such contact 2 3 The keypad 2 3 The keypad The buttons have the following meanings on off Commutes status if the machine Is on one press of the button places it in Standby vice versa it is re enabled Pressed for 5 secs accesses the User parameters In the presence of an alarm silences the buzzer Repeated pressing displays cyclically the current time date and the temperature of the air in the room In programming phase scrolls or increases the value of the parameters 9 of 5 gt lt Held pressed displays the set point In programming phase scrolls or decreases the value of the parameters Pressed for 5 secs accesses the Direct parameters In programming phase modifies the value of the selected parameter see par 5 2 Parameter modification Pressed together for 2 secs reset the alarms 3 Programming parameters and their modification 3 1 Parameters The parameters are divided into 3 levels each of which contains the previous which the user can access to customise the operation of the EMIPRO Level Access DIRECT D immediate access 3 2 Parameter modification Accessing Direct parameters D The value of the first accessible parameter is displayed in the upper right with the parameter code flashing LENNUX 6 Accessing User parameters 0 The number 0 is displayed and on the left the lock
13. ication with various pre settable configurations Main functions Control based on the temperature and humidity of the inlet air Energy saving with free cooling Shelters or compensation Dehumidification management Control of the supply fan speed Complete alarm management with log Rotation of a series of units Time bands Can be connected to a serial line for supervisor telemaintenance Controlled devices 1 or 2 compressors or valve for cooling battery 1 or 2 heating elements or valve for heating battery Supply fan in ON OFF or proportional mode Humidifier with proportional or ON OFF output Dehumidification with ON OFF output Alarm device Options e RS485 serial board e Clock board with memory for logging the alarms and time bands e Fan control modules Programming key 2 EMIPRO user interface The EMIPRO is made up of a display and a power board see Fig 1 Fig 1 LENNUX 2 1 The display Fig 2 N B Fig 2 illustrates all the symbols and the messages shown on the display this occurs on starting the regulator LENNOX 3 ambient temperature in prog displays the value of the parameter L or temp unit of measure degrees Centigrade Fahrenheit BB ambient humidity in programming displays the no of the parameter rH relative humidity unit of measure rz buzzer active duum hour counter limit exceeded OFF status from time bands fal time bands active ON
14. machine is placed ON and when the error is detected At the moment of detection the corresponding functions are deactivated supply temperature alarm management At and if free cooling is active with control of the supply temperature the damper is closed EE EEPROM data read write error Can occur also during a reset only if it is not possible to make the correction to the secondary bank This error does not affect the operation of the regulator EL insufficient power supply during EEPROM write Data write error to EEPROM due to power failure or power below 13Veff H1 H2 high pressure C1 C2 Detected irrespective of the activation of the compressor and causes its immediate switching off without waiting the corresponding delay times The alarm H2 is managed only if parameter H5 2 or 4 two independent circuits If condensation fan regulation is present this is activated for 60 seconds at maximum speed before switching off L1 L2 low pressure C1 C2 Detected only with the compressor on and causes its immediate switching off without waiting the corresponding delay times The alarm is delayed by P3 seconds on the start up of the compressor If automatic reset is set parameter P5 a compressor restart is attempted 10 times then the alarm is automatic reset automatically The alarm L2 is managed only if parameter H5 2 or 4 two independent circuits F1 dirty filter Signal only alarm No outputs are deactivated FL air flow
15. n supply temp difference for supply temp alarm Machine model 0 ED unit 1 CW unit 2 CW unit H C 3 shelter No of machines in rotation 0 stand alone machine 1 1 unit master 2 2 units 6 6 units 3 Address of unit in rotation 4 Rotation time between a series of units UUUU 0 test mode t 2 min 5 Operating mode of the 2 cool outputs FFFF 1 5 flags 1 1 1 compressor 2 compressors on 2 circuits 3 three point valve 4 2 compressors in binary parallel 5 2 compressors in tandem 50 50 LENNOX 11 FFFF 02 O o Q3 C1 O O flags 1 3 three point valve 4 2 heating elements in binary 7 valve or damper excursion time FFFF Presence of humidifier FFFF 8 of dehumidification FFFF 0 comp 1 ON 1 comp 2 ON 2 two comp ON 3 capacity controlled cooling ramp 4 fan speed reduction 5 action 4 0 6 action 4 1 7 action 4 2 8 action 4 3 I 9 no action Operating mode of the 2 heat outputs 0 no heating element 1 1 heating element 2 2 heating elements 7 fla flags Q Function of the dehumidification humidification relay F FFF 0 energised in dehumidification 1 de energised in dehumidification 2 relay for non serious alarms follows logic of parameter HF 3 output for rotation control 4 energised in humidification 5 de energised in humidification
16. nstant the machine is placed ON and when the error is detected At the moment of detection the control is placed OFF respecting the configured times except for the fan E2 external air probe failure generated due to open or short circuited probe Alarm delayed by 1 minute from the instant the machine is placed ON and when the error is detected At the moment of detection the corresponding functions compensation and free cooling are deactivated If probe 2 is used for condensation the fan is forced at maximum speed E3 humidity pressure probe failure generated due to open probe and for voltages above 1 15V if the input is configured as 0 1V or if the input is configured as 4 20mA for currents below 3mA and over 23mA Alarm delayed by 1 minute from the instant the machine is placed ON and when the error is detected At the moment of detection the corresponding functions are deactivated humidity control humidification dehumidification if probe B3 is used as a pressure sensor for the control of condensation and probe B2 is present for reading the external air temperature the fan is forced on at maximum speed if the temperature measured by B2 gt 15 C The same is true if probe B2 is not present If the temperature B2 15 C on the other hand the fan operates at half speed LENNUX 17 4 supply air temperature probe generated due to open or short circuited probe Alarm delayed by 1 minute from the instant the
17. nt 1 NTC Carel enable corresp alarm Value of humidity pressure at 0 4mA or FFFF et OVdc 5 Value of humidity pressure at 20mA Or 1Vde FFFF 4 100 rHbar 100 Calibration probe 1 UFUU 6 0 6 0 C 10 8 10 8 SE 7 Calibration probe B2 UFUU 60 6 0 10 8 10 8 Calibration probe B4 UFUU 6 0 6 0 1 8 EN 8 Digital fiter UFUU 1 c Unitofmeasure 0 C 1 F UUUU o 1 Fag o LENNOX 8 Det New 1 1 Temperature Set Point cooling DDDD rA rb 200 ee ee SI 0 1 19 8 T IE EIL 0 1 19 8 T 0 1 19 8 5 Humidity SetPoint DDD rc rd 50 6 Humidification differential 1 DDDD 1 20 H 4 7 Dehumidification differential DDDD 1 20 H 3 8 Humiditydeadzone DDDD O 20 si 9 TemperatureSetPoint heaing DDDD rA rb cre 180 Minimum temperature set point also for UFUU 20 rb C mE compensation 4 temperature set point also for compensation 140 c Minimumhumidtysetpon UFUU o rd H o d Maximum humidity set poit UFUU rc 100 100 E Type of temperature regulation 0 i P UFUU o 1 Flag o F Integration timeforPlaction uFuu 10 300 s 600 unique for Cooling heating for U F
18. rent time and date Pressing the button once displays the time and the day of the week 1 Monday 2 Tuesday 7 Sunday pressing it again displays the date in the format day month year Setting the time First press the T button keeping it pressed and then the Prg button keeping both pressed for 5 seconds Fig 32 The minutes will begin to flash use the ang 4 buttons to set the desired time Use the Sel button on the other hand to select in order the fields hours day of the week year month day of the month At the end press the Prg button to confirm the modifications made 5 2 Time bands Entering the parameter rt see USER parameter modification allows the selection of rt 1 or 2 enabling the time band function Pressing the Sel button displays in sequence with the scrolling of a segment time bands 1 2 3 4 of day 1 Monday time bands 1 2 3 4 of day 7 Sunday The and buttons allow with 10 minute steps the start time of the selected band to be modified while the ON OFF button enables or disables the action of the band itself confirmed by the messages ON OFF on the display Copying the time bands If the times set for the bands are also valid for the following days these can be simply copied by pressing and holding the Sel button for 3 seconds Once the copy has been made the following day is automatically displayed if this too is to be copied release the Sel but
19. status if even the current band provides an off command This event does not block the alarm log which continues to store the signals however with incorrect time values n1 compressor 1 maintenance warning n2 compressor 2 maintenance warning Signal only alarm generated when the hour counter threshold has been exceeded displayed together with the symbol see parameters c9 compressor 1 and cA compressor 2 nF filter maintenance warning nU fan maintenance warning n2 compressor 2 maintenance warning Signal only alarm generated when the hour counter threshold has been exceeded displayed together with the symbol see parameters FC filters and FA fan 6 4 Machine shut down signals These appear in the event of internal machine malfunctions and cause its shut down The code 15 displayed in the ambient temperature or hour minutes field of the LCD display Er C Checksum error during code check in Flash the control can no longer be used Er E The content of the EEPROM parameter memory is damaged A reset can be attempted by reloading the default values Er L Insufficient power Power voltage lt 13Veff when writing the default values or during an attempt to automatically recovery an EEPROM damaged sector LENNOX 19
20. ton and then press it again for a further 3 seconds LENNOX 13 The ON status controlled by the time bands is only valid if the machine is first activated from the keypad or the remote input if enabled The OFF status controlled by the time bands displayed by the half moon symbol D on the display acts according to whether parameter rt is set to 1 or 2 rtz 1 Sleep mode during the OFF status the fan works and the actuators remain off The machine is reactivated in the following conditions a the temperature exceeds 7096 of the high low alarm threshold returning to Sleep if the temperature falls within 4096 of the alarm delta b the ON OFF is pressed in this case the on status lasts until the next time band during this period the symbol flashes rtz 2 the machine is in stand by as if the ON OFF had been pressed In this case too pressing the ON OFF button activates the machine until the next band switching OFF time 5 3 Alarm log In the event of an alarm the alarm code hour minute and data are recorded up to a maximum of 300 signals On reaching the maximum number the oldest events are deleted code 1 always indicates the most recent alarm Display alarm log To display the list of alarms recorded press the button followed by the Alarm button l 19 Sel 9 I D alarm ente onott alarm ae enter f LJ p ra I Clear EN Fig 34
21. um 1 Et probeBt fimin 5 ON OFF OFF _ 2 Ee iL 3 probeBs imin P5 ON On OFF OFF 4 E4 probeB4 amin P5 On On 5 EEPROM boot imm auto OFF OFF OFF OFF OFF OFF OFF OFF imm 7 EL insutt power mm am ON ON 1 c 8 highpessC imm ma ON on OFF 9 H2 highpessC2 imm ma ON ON OFF Ho Li owpeeeCt Pa Ps on OFF 11 12 lowpressc2 Ps 1 5 ON ON OFF 12 Fi filterdity imm P5 On on 13 14 heating elements Imm ON ON OFF OFF _ 15 At suplytem 2mn P5 ON ON 16 AH humidir 30s s ON JON JOFF 17 Lt owtem PB ON ON Hel Ht nghtem PA LPS ON ON 19 lowhumid PA 5 20 HH hiBphumd PA P5 ON ON ale om hems mm ps TOR T semusgenene P ON OFF OFF OFF OFF OFF PA power fail Pra lau ON ON lOFF 1 OFF rman TON TS a SEIT threshold compressor 1 28 nf hour counter imm FC
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